Viega 93031 Installation guide

Viega
Brand
Viega
Model
93031
Category
Water heaters & boilers
Type
Installation guide
PureFlow
®
WaterSystems
May 2011
Installation Manual
Viega IM-PF 0511
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2
Why you can depend
on ViegaPureFlow.
•
A safe system
•
Competitively priced
•
Leakproof tting connection
•
Highly exible and kinkresistant
•
Lightweight and easy tohandle
•
Fast and solder-free installation
•
No open ame duringinstallation
•
Reduced number of ttings used
in wall
•
Long life expectancy
•
Non-corroding
•
Reduced ow noises
•
In coils or straight lengths
•
FostaPEX form stable tubing ideal for
exposed runs
•
Listed by NSF to meet the
requirements of ANSI 14 and 61 and
PEX5006 (CL5).
•
Listed to ASTM F876 andF877
IMPORTANT NOTICE
IN THE EVENT OF CONFLICT OR
INCONSISTENCY BETWEEN THESE
INSTALLATION GUIDELINES AND
LOCAL BUILDING OR PLUMBING
CODES, LOCAL CODES SHOULD
TAKE PRECEDENCE.
NOTE: Failure to follow the installation
instructions will void the Viega Plumbing
Warranty. Nothing in this publication
is intended to create any warranty
beyond Viega’s applicable warranty. For
additional information, contact Viega at
800-976-9819.
This installation guide is intended
for traditional (branch and main)
plumbing systems and hybrid plumbing
systems using termination manifolds,
MANABLOC
®
and MINIBLOC parallel /
manifold plumbing system.
NOTE: References to ViegaPEX™
tubing made throughout this publication
include the entire line of Viega cross-
linked polyethylene products.
NOTE: References to ZERO LEAD
throughout this publication identies
meeting the lead free requirements of
California and Vermont law effective
January 1, 2010, as tested and listed
against NSF-61, Annex G.
Working with Viega
is the perfect solution.
Viega researches, develops and produces
complete system solutions for contractors.
The components are produced at our
plants or are supplied exclusively by the
nest quality manufacturers. Each of our
systems is developed in-house and tested
under stringent quality control conditions to
guarantee safety and efcient operation.
An international
companywith a
national commitment.
Viega PureFlow plumbing combines
technology from both sides of the Atlantic
into the very best PEX plumbing systems
for our customers.
Viega’s reach extends throughout North
America with distribution across the U.S.,
Canada and Mexico.
Our network of sales experts and wholesale
distributors can meet your needs whether you
are in Boston or Berkeley. The products we
deliver are the nest quality offered at a highly
competitive price. Our goal is to remain o n the
forefront of the plumbing industry well into the
new century, and with our advanced products
and a determination to remain the quality
leader, we are convinced this accomplishment
is well within our reach.
Call 800-976-9819 for your local
representative and wholesale location.
Viega IM-PF 0411
PureFlow is a registered trademark of Viega LLC
MANABLOC is a registered trademark of Viega LLC
ViegaPEX is a trademark of Viega LLC
FostaPEX is a registered trademark of Viega GmbH & Co. KG
Copyright April 2009 Viega LLC, All rights reserved.
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1 Introduction
1.1 Viega .................................................5
1.2 PureFlow System Concepts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Green Building
2.1 General ...............................................7
2.2 Structured Plumbing .................................... 7
2.2.1 Parallel Systems ...................................7
2.2.2 Branch and Main Systems ........................... 8
2.2.3 Combination Systems .............................. 9
2.2.4 Domestic Hot Water Circulating Systems ............... 9
3 ViegaPEX Tubing
3.1 General ..............................................10
3.2 PEX — the superior tubing ............................... 10
3.3 Colors ...............................................10
3.4 ViegaPEX Properties and Performance ..................... 10
3.5 Tubing Markings ....................................... 10
3.6 ViegaPEX Tubing Dimensions ............................ 10
3.7 ViegaPEX Sizes ....................................... 10
4 ViegaPEX Ultra Tubing
4.1 General ..............................................11
4.2 PEX — the superior tubing ............................... 11
4.3 Colors ...............................................11
4.4 ViegaPEX Ultra Properties and Performance ................ 11
4.5 Tubing Markings ....................................... 11
4.6 ViegaPEX Ultra Tubing Dimensions ........................ 11
4.7 ViegaPEX Ultra Sizes ................................... 11
5 FostaPEX Tubing
5.1 General ..............................................12
5.2 Advantages of FostaPEX ................................ 12
5.3 Colors ...............................................12
5.4 FostaPEX Properties and Performance ..................... 12
5.5 Tubing Markings ....................................... 12
5.6 FostaPEX Tubing Dimensions ............................ 12
5.7 FostaPEX Sizes ........................................ 12
6 PureFlow PEX Press Fittings
6.1 Bronze PEX Press with Attached Sleeve ................... 13
6.1.1 Bronze PEX Press Fittings, Manifolds and Sleeves ...... 13
6.1.2 Bronze PEX Press Fitting Markings ................... 13
6.2 PEX Press Connection with Attached Sleeve ................14
6.2.1 The PureFlow PEX Press Hand Tool ..................14
6.2.2 The PureFlow PEX Press Power Tool. ................14
6.2.3 The PureFlow PEX Press Fitting. .....................14
6.2.4 Making a PureFlow PEX Press Hand Tool Connection
(Attached Sleeves) ................................15
6.2.5 Making a PureFlow PEX Press Power Tool Connection
(Attached Sleeves). ...............................16
7 PureFlow PEX Crimp Fittings
7.1 Brass PEX Crimp ......................................17
7.1.1 Brass PEX Crimp Fittings, Manifolds and Crimp Rings ...17
7.1.2 Brass PEX Crimp Fitting Markings. . . . . . . . . . . . . . . . . . . . 17
7.2 PolyAlloy
™
PEX Crimp .................................. 18
7.2.1 PolyAlloy PEX Crimp Fittings and Crimp Rings .........18
7.2.2 PolyAlloy PEX Crimp Fitting Markings ................. 18
7.3 PEX Crimp Connections .................................19
7.3.1 The PureFlow PEX Crimp Hand Tool .................19
7.3.2 The PureFlow PEX Crimp Fitting .....................19
7.3.3 Making a PureFlow PEX Crimp Connection ............20
8 The MANABLOC
8.1 The MANABLOC ....................................... 21
8.1.1 MANABLOC PEX Connections ......................21
8.1.2 MANABLOC Markings ............................. 21
9 System Sizing and Calculations
9.1 System Sizing and Calculations ...........................22
10 Installing the PureFlow PEX Tubing System
10.1 Handling PureFlow Tubing ..............................24
10.2 Uncoiling PureFlow Tubing .............................24
10.3 Bending PureFlow Tubing ..............................24
10.4 Installation Temperature Range .........................25
10.5 Removing PureFlow PEX Connections ....................25
10.6 Repairs .............................................25
10.7 Tubing Expansion .....................................26
10.8 Freezing .............................................26
10.9 Water Heaters ........................................27
10.10 Heaters, Flues, Vents and Recessed Lights ...............27
10.11 Continuously Recirculating Hot Water Plumbing Loops .....27
10.12 Noise and Water Hammer in PEX Systems ...............28
10.13 Shower Valves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
10.14 Electrical Grounding ..................................28
10.15 Pressure Testing .....................................28
11 Fastening the PureFlow System
11.1 Wood Frame Construction ..............................29
11.2 Supporting PureFlow Tubing ............................29
11.3 Steel Construction ....................................30
11.4 Concrete ............................................30
11.5 Installing Under the Slab ...............................30
11.6 Below Grade and Service Line ..........................31
11.7 Foundation Penetration ................................31
11.8 Direct Burial of PureFlow Fittings .........................31
11.9 Protecting PEX Tubing .................................32
12 Installing Manifolds and Fittings
12.1 General .............................................33
12.2 PureFlow PEX Press Brazed Copper Manifolds .............33
12.3 PEX Press ProPress Manifolds ..........................33
12.4 PureFlow PEX Crimp Brazed Copper Manifolds ............33
12.5 PureFlow MANABLOC Homerun Manifold Plumbing System ..33
12.6 Stub Out Options .....................................34
12.7 Copper Connections ..................................34
12.8 Threaded Connections .................................35
12.9 Valves ..............................................35
13 PureFlow MANABLOC System Design and Sizing
13.1 General .............................................37
13.2 Supply and Distribution Line Sizing ....................... 37
13.3 Plumbing Code Compliance (Parallel Systems) .............37
13.4 Valve Requirements for Parallel Systems ..................37
14 Installing the MANABLOC
14.1 General .............................................38
14.2 Overview and Carton Contents ..........................38
14.3 Location .............................................38
14.4 Valve Operation ....................................... 40
14.5 Domestic Hot Water Circulation Systems ..................40
14.6 Multiple MANABLOC Installations ........................40
14.7 ViegaPEX General Design/Installation Practices .............40
CONTENTS
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15 Mounting the MANABLOC
15.1 Mounting the MANABLOC Between Studs ................42
15.2 Mounting the MANABLOC Between Studs Without Use of
45716 Straps .........................................43
15.3 Mounting the MANABLOC Without Studs, Surface Mount ....44
16 Installing MANABLOC Distribution Lines
16.1 Installing MANABLOC Distribution Lines ..................46
16.2 Connecting Distribution Lines to the MANABLOC ...........46
16.2.1 Compression Connections (3/8" & 1/2" ports) .........47
16.2.2 PEX Press Connections (1/2" ports) ................. 47
16.2.3 PEX Crimp Connection (1/2" ports) .................48
16.3 Connecting Distribution Lines to Fixtures ..................49
16.4 Water Supply Connections .............................49
16.5 Filling and Testing the MANABLOC .......................50
16.6 Draining the MANABLOC System ........................50
16.7 To Completely Drain the System .........................50
17 Pressure Testing PureFlow Systems
17.1 General .............................................51
17.2 Leak Detection .......................................52
18 System Disinfection
18.1 General .............................................53
19 Codes, Standards and Approvals
19.1 Codes ..............................................54
19.2 Standards ...........................................54
19.3 Listings and Certications ..............................54
PureFlow Warranty ......................................55
Terms Used in This Guide:
PEX .........................................................ViegaPEX cross-linked polyethylene tubing
AHJ .........................................................Authority Having Jurisdiction
PPM ......................................................... Parts Per Million
NSF .........................................................NSF International, Inc. (formerly National Sanitation Foundation)
CAN/CSA .....................................................Canadian Standards Association
“shall” .......................................................Required; a mandatory procedure
“may” or “should” ..............................................A suggested optional procedure
CONTENTS
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1.1 Viega
For over 100 years, Viega has been
a trusted name in the plumbing
business globally.
Through innovative techniques,
sophisticated technologies and
acquisition of the top PEX plumbing
products in the U.S. Viega has become
the industry leader for PEX plumbing.
Viega produces a comprehensive
range of plumbing and heating
equipment. Anywhere that water ows
in a building Viega manufactures
a system to t. The company’s
experience with press tting
technology in bronze, stainless steel
and copper led to the development
of the PureFlow water distribution
system. Viega is positioned as the
number-one supplier of PEX plumbing
systems in North America.
Today Viega engineers and
manufactures more than 12,000
system components at six state-of-
the-art factories including our PEX
tubing facility located in the heart of the
U.S. Viega quality has proven itself in
millions of systems installed each year
around the world.
Viega has a history in North America of
technological innovation and customer
service that is second to none. The
Viega product line now is composed
of multiple brands including ProPress
®
ameless copper and ProPress
®
stainless steel joining technology,
PureFlow
®
exible PEX tubing plumbing
technology, ProRadiant
®
comfortable
efcient heating technology and S-no-
Ice
®
snow and ice melting technology,
to name a few. Each line is selected
so that components work together to
create a complete system concept.
PureFlow plumbing provides complete
PEX systems for potable water
distribution, including manifolds, PEX
and multilayer tubing, ttings and
valves. PureFlow re sprinkler provides
a PEX system for multipurpose one
and two family residential re sprinkler
systems, per NFPA 13D, including
ttings and ViegaPEX Ultra Black
PEX tubing in sizes 3/4" to 2". The
ProRadiant program includes a wide
range of hydronic radiant systems and
controls as well as thermostats and
setpoint controls.
In addition, the Viega S-no-Ice line
includes snow and ice detection
controls, heat exchangers and snow
melting systems.
As the pioneer in combining technology
and engineering expertise from both
sides of the Atlantic into the very best
systems for our customers in North
America, we are proud to present
you the world’s nest potable water
distribution systems: PureFlow.
The name says it all.
We look forward to sharing our history
in the making with you.
1. INTRODUCTION
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1.2 PureFlow System
Concepts
ViegaPEX PureFlow is a high-quality
exible PEX system for hot and cold
potable water distribution.
The PureFlow plumbing system offers
maximum security thanks to cold press
and full circle crimp tting techniques.
These ttings guarantee the plumber quick
installation, suitability for use inall types of
applications at the construction site and
vast reductions in the required number of
ttings and necessary installation time.
Top quality materials such as brass,
bronze, stainless steel and durable,
environmentally compatible plastics
provide the basis for the very highest
standards of quality at Viega.
Viega offers a full line of Zero Lead
products that meet the requirements of
California AB 1953, Vermont ACT 193, and
NSF 61 Annex G, which require less than
0.25% lead in all plumbing ttings used
in cooking and drinking water systems.
All Viega plastic and copper articles are
naturally lead free and comply with the
new legislation.
ZERO LEAD identies Viega products
meeting the lead free requirements of
California and Vermont law, effective
January , 2010, as tested and listed
against NSF-61, Annex G.
PEX tubing offers outstanding versatility.
More than 930 million feet of Viega PEX
Tubing has been manufactured since 2006.
This is conclusive evidence of this product’s
considerable importance
in plumbing installation, in both
quality and quantity.
This is clearly the result of excellent
workmanship, fast and simple installation
and the reliability and safety which are
characteristic of theViega system concept.
The efciency of the integrated system
concept for Viega branded products is
conrmed by:
•
Perfectly coordinated components
•
Quick delivery at short notice
•
Time-saving installation
•
Complete installation of an entire
system from one supplier
Viega’s comprehensive services include
technical support and warranty coverage,
subject to the exclusive use of PureFlow
system components.
PureFlow is a high-quality plumbing system.
It is able to withstand high levels of thermal
and mechanical stress (180°F at 100 psi,
73.4°F at 160 psi).
The systems incorporate:
• ViegaPEX tubing: red, white and blue
cross-linked polyethylene tubing designed
with superior chlorine resistance
• ViegaPEX Ultra tubing: red, white, blue,
and black cross-linked polyethylene tubing
with added resistance to UV
• ViegaPEX Ultra black tubing: UL 1821
listed for use in multipurpose one and
two family re sprinkler systems per
NFPA 13D.
• Viega FostaPEX tubing: cross-linked
polyethylene with additional aluminum and
polyethylene layers to provide rigidity and
form stability, available in red or silver to
differentiate hot water lines
• A range of standard and zero lead bronze,
brass or plastic ttings for PEX Press and
PEX Crimp tting systems
• PureFlow MANABLOC distribution system
for use with Viega PEX tubing
• A range of inline, manifold and stop valves
for ViegaPEX tting systems
• Viega PureFlow press tools and jaws for
the PEX Press tting systems
• Viega PureFlow crimp tools
for the PEX Crimp tting systems
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The MANABLOC Manifold is a
unique plumbing system that not
only provides a superior plumbing
system for homeowners but can also
be incorporated to provide water
and energy savings. It’s a simple
concept that provides extraordinary
performance. Each xture is fed by
its own exible water distribution
line, which runs from a central
manifold. By providing each xture
with its own distribution line, the line
can be sized appropriately so hot
water can be delivered rapidly. Since
the line is dedicated to a single hot
or cold xture, less water is required
to purge the line. This saves time,
energy and can reduce water waste
by up to 40%.
2. GREEN BUILDING
2.1 General
Green Building incorporates
environmental considerations into
every phase of the home building
process. Multiple factors are
considered during construction
as well as its operation and its
impact on the environment.
LEED
®
(Leadership in Energy
and Environmental Design) was
established by the U.S. Green
Building Council (USGBC) as a
system to dene and measure “green
building.” This voluntary market-
driven rating system is based on
existing, proven technology, and
awards credits for different aspects
of environmental design. There are
four levels of performance that can
be achieved per these resource
categories: Certied, Silver, Gold
and Platinum.
Viega’s
PureFlow
plumbing systems
can be incorporated to improve both
water and energy efciency, earning
your home credits toward a LEED
certication level (when following
LEED installation criteria). To obtain
more information concerning LEED
certication for your home, contact
the USGBC.
2.2 Structured Plumbing
Structured plumbing is the practice
of installing and/or designing a
plumbing system in a manner
that enhances the system's
performance by reducing water
waste and hot water delivery times.
This plumbing strategy is becoming
important for home builders in
markets where water conservation
is prevalent. Viega, being the leader
in innovation and technology for the
plumbing and heating systems, has
embraced this philosophy with its
plumbing products.
2.2.1 Parallel Systems
Using home run manifolds (see
illustration below), the installer can
potentially plumb a house without
ttings hidden inside walls. By
installing a manifold system near
the hot water source, tubing can be
run directly to each xture without
using additional ttings. This system
provides the lowest pressure losses,
as well as eliminates interference
between xtures. Often each xture
can be fed with smaller diameter
tubing such as 3/8" diameter, which
is easier and faster to install.
Parallel Method
Clean System and Clean Installation
The MANABLOC is preferred by
many installers thanks to its fast
and safe installation. There are no
fumes from solvents to contend
with and no torches required on site
for installation. Installation time is
signicantly less than that of a rigid
plumbing system due to the exibility
of ViegaPEX tubing and the simplicity
of the
PureFlow
tting systems.
Viega tubing is color coded to make
installation easier and the connection
of xtures to the proper distribution
line faster and more foolproof.
Homeowners can be assured of the
purity of the system due to the third
party NSF 61 certication carried by
both the MANABLOC and ViegaPEX
tubing. Homeowners also benet
from the corrosion resistance of
ViegaPEX, which helps prevent
contamination of drinking water.
Fewer Fittings Behind the Wall
The MANABLOC requires fewer
ttings than branch and main
plumbing systems. This means very
few are needed behind the wall.
The MANABLOC is installed using
exible ViegaPEX tubing that can be
bent around obstacles without the
need for ttings. In most cases, each
dedicated line has a tting at the
MANABLOC and one at the xture
connection with no ttings located
behind the walls.
Rich in Homeowner Benefits
Home builders enjoy the many
features the MANABLOC system
offers their customers over branch
and main plumbing systems
including:
• Faster Hot Water Delivery –
properly sized lines deliver hot
water up to four times faster
• Better Control of the Plumbing
System – individual shutoff valves
provide a simple way of servicing a
xture or adding on to the system
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• Quiet Operation – Flexible
ViegaPEX tubing reduces
water hammer noise and
provides quiet operation
• Balanced Water Delivery –
multiple xtures can be used
simultaneously without noticeable
pressure or temperature changes.
Design Factors for Installing a
Parallel System
Water Heater Placement
The MANABLOC should be as close
as possible to the water heater to
minimize extra water from being
stored in the larger hot water supply
lines between the MANABLOC and
water heater.
The longer the hot water supply line
is, the greater the volume of water
requiring purging through the faucet
before hot water is available. This
creates water waste and longer hot
water delivery times.
Proper Water Distribution Line
Sizing to Each Fixture
This is crucial for overall system
performance. If you oversize a
distribution line to a xture (1/2" PEX
line supplying a sink instead of a 3/8"
PEX line) you are essentially doubling
the volume of water being stored in
that line. It can take roughly twice
as long to purge an oversized line
compared to a properly sized line.
The xture is what dictates water
ow (federally mandated, governed
by code). The tubing applies a
friction loss dictated by its size and
length. Therefore, as long as you do
not undersize a distribution line or
run it excessive distances (60 feet
or greater), the system will perform
properly, maintaining sufcient
pressure and ow.
The Length of a Distribution Line
Run to Each Fixture
This is just as important as properly
sizing each distribution line.
Length of a distribution line run can
drastically affect the performance of a
MANABLOC system. The longer the
line is, the more water being stored
within it. Therefore, it will take longer
to purge it out before hot water can
reach the xture. The MANABLOC
should be located somewhat central
to your xture groups, keeping within
60 feet or less of each xture for
maximum performance.
If this cannot be accomplished
with one MANABLOC, multiple
MANABLOCs may be required. Place
one at each end of the home to split
the distribution line distance between
them (see section 14.6 for use of
multiple MANABLOCs).
2.2.2 Branch and Main
Systems
This method of plumbing is
commonly referred to as a
conventional plumbing system or
branch and tee systems.
This system uses a large diameter
“main” supply line (minimum 3/4")
for both hot and cold water supplies
that runs throughout a structure to or
near each xture group with smaller
“branch” lines teeing off the main to
supply each xture.
Branch Installation
While this system can reduce the
amount of tubing used, it requires
more ttings, which can increase
installation time and cost.
Design Factors for Installing
Branch and Main Systems
Design the layout as condensed
as possible
Keep the main hot supply line
close to the xture groups with the
branch lines shorter than 6 feet.
This will help provide hot water in a
reasonable amount of time with less
wasted water.
The limiting factor for installers to
accomplish an optimal design is how
spread out the xture groups are
within the structure.
If the xture groups are not
condensed, a branch and main
system will have slow hot water
delivery times and substantial
water waste.
If there is a oor plan that
incorporates stacked or back-to-
back xture groups, then a branch
and main system can be an effective
alternative to a parallel system.
One disadvantage to these systems
is they store excess amounts
of water in the large main lines.
Therefore the farther away the xture
is, the longer the main supply line
must be to reach it, and the longer
it takes to purge all stored water out
before hot water reaches the xture.
Another problem these systems
suffer from is noticeable pressure
drop during multiple xture use.
When multiple xtures are used
it increases the water ow (load)
within the main line, causing higher
friction loss equal to pressure loss
at the point of use. This causes a
drop in pressure (and potentially a
temperature change) in your shower
when a toilet is ushed.
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This is done by using a return line at
the end of the main hot supply line,
and a low-ow pump (usually near
the hot water tank). The circulating
system keeps hot water readily
available throughout the entire main
hot water supply line, eliminating
the need to purge the entire line
before hot water is present at the
xture.
There are a number of hot
water circulation systems
available in the marketplace that
offer a variety of options. These
systems are ideal for branch and
main, or combination systems with
spread-out xture groups/oor plans,
as well as for larger homes using
multiple MANABLOCs in a parallel
type system.
Design Factors for Hot Water
Circulation Systems
Installing a hot water
circulation system
A tanked water heater shall be used
for this type of system. A tankless
or instantaneous type water heater
will drastically increase the operating
cost of the system.
There are many types of these
systems available on the market
today. Research which type is
best for the particular application.
Ensure all the components being
used within the circulation system
are rated and/or approved for a hot
water circulation system. The chosen
system may require maintenance
and/or repairs over time, which could
include complete pump replacement.
Note: Utility costs are associated
with running these systems due to
the electricity required to operate
the pump. Costs will vary
depending on the frequency of
operation and size of the pump.
Design Factors for Installing
Combination Systems
Just like the branch and main
system, condensed oor plan layouts
are preferable to minimize the length
and the amount of water stored in
the main supply line, minimizing
the amount of water purged before
hot water reaches the xtures.
These systems can also suffer from
uctuating pressure during multiple
xture use.
2.2.4 Domestic Hot Water
Circulating Systems
A hot water circulation system can
be incorporated into most plumbing
systems and works by constantly
(or periodically throughout the day
on a timer) circulating hot water
through the main hot supply line of
your plumbing system.
2.2.3 Combination Systems
A combination system uses multiple
manifolds combined with a branch
and main type supply system.
These systems use small manifolds
located throughout a structure
placed near each main xture group
and are supplied by the main hot
and cold supply lines similar to
the branch and main system. The
manifolds branch multiple lines from
a common location in lieu of multiple
tee ttings spread throughout. This
takes advantage of benets from
both types of systems and helps
keep hidden ttings to a minimum.
Combination Installation
Viega IM-PF 0511
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3.6 ViegaPEX Tubing Dimensions
Flexibility:
• ViegaPEX can be easily bent by
hand, or with the use of Viega
approved bend supports toaradius
as small as 5 times tubing
outerdiameter.
3.5 Tubing Markings
ViegaPEX tubing is marked
every 5 feet with the following
representative information:
Length Marker 000 Feet
Company Viega
Product Name ViegaPEX™
Nominal Tubing Size 1/2"
Standard Dimension Ratio Tube Size SDR 9 CTS (copper tube size)
Material Designation Code PEX5006
Temperature & Pressure Rating 100 PSI @ 180F/ 160 PSI @ 73F
NSF Listing (Potable) cNSF®us-pw
NSF Chlorine Listing CL5
ASTM Tubing Standards Certificaition F876/F877
Candian Standard Assoc CSA B137.5
Fittings System Compatibility PureFlow - ASTM F877/F1807/F2159
IAPMO Listing UPC®
Plenum Rating* FS/SD 25/50 ASTM E84
ICC Listing ES-PMG™ - 1038
HUD Listing MR 1276
Manufacturer's Date Code 1/1/2010
Material Code B2X14.2
Country of Manufacture Made in the USA
* 3/4" and smaller tube sizes only
3.1 General
ViegaPEX PureFlow tubing is a high-
density cross-linked polyethylene
tubing (PEX). Cross-linking produces
a strong, durable tubing ideal for both
hot and cold potable water systems.
3.2 PEX - the superior tubing
Cross-linked polyethylene is the
ideal tubing choice for potable water
systems. Compared to ordinary
polyethylene tubing (PE), cross-
linked tubing has higher temperature
resistance and higher burst pressure.
ViegaPEX tubing is manufactured
to ASTM F876/F877 standards and
listed to ANSI/NSF Standards 14
and 61. It is chlorine resistance rated
for both traditional and continuous
recirculation PEX 5006 (CL5)
applications. ViegaPEX tubing is
rated at 100 psi at 180°F and 160 psi
at 73°F.
In addition, the smooth walls of
ViegaPEX tubing are resistant to
corrosion and scaling.
3.3 Colors
ViegaPEX is available in red, white
and blue for easy identication of hot
and cold lines.
3.4 ViegaPEX Properties
and Performance
Linear Expansion Coefcient:
• 1.1 inch per 100 feet per 10°F
Temperature and Pressure Ratings:
• 200°F at 80 psi
• 180°F at 100 psi
• 73.4°F at 160 psi
UV Resistance:
• maximum exposure 60 days
3. VIEGAPEX TUBING
Nominal Size Inner Diameter Outer Diameter Wall Thickness
3/8" .350 .500 .075
1/2" .475 .625 .075
3/4" .671 .875 .102
1" .863 1.125 .131
Nominal Size Available Coil Lengths Available Straight Lengths
3/8" 100, 500, 1000 feet ---------
1/2" 100, 300, 500, 1000 feet 20-foot lengths in bundles of 50
3/4" 100, 300, 500, 1000 feet 20-foot lengths in bundles of 25
1" 100, 500 feet 20-foot lengths in bundles of 5
3.7 ViegaPEX Sizes
Viega IM-PF 0511
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4.5 Tubing Markings
ViegaPEX Ultra tubing is marked
every 5 feet with the following
representative information:
4.1 General
ViegaPEX Ultra tubing is a high-
density cross-linked polyethylene
tubing (PEX). Cross-linking produces
a strong, durable tubing ideal for both
hot and cold potable water systems.
4.2 PEX - the superior tubing
Cross-linked polyethylene is the
ideal tubing choice for potable water
systems. Compared to ordinary
polyethylene tubing (PE), cross
linked tubing has higher temperature
resistance and higher burst pressure.
ViegaPEX Ultra tubing is
manufactured to ASTM F876/F877
standards and listed to ANSI/NSF
Standards 14 and 61. It is chlorine
resistance rated for both traditional
and continuous recirculation PEX
5006 (CL5) applications. ViegaPEX
Ultra tubing is rated at 100 psi at
180°F and 160 psi at 73°F.
In addition, the smooth walls of
ViegaPEX Ultra tubing are resistant to
corrosion and scaling.
4.3 Colors
ViegaPEX Ultra, available in red,
white, blue and black, is multilayered
(2 layers) with a black core that
increases the UV resistance of the
tubing, enabling exposure of up to 6
months. It also blocks transmission of
visible light, preventing most types of
algae growth from occurring.
4.4 ViegaPEX Ultra Properties
and Performance
Linear Expansion Coefcient:
• 1.1 inch per 100 feet per 10°F
Temperature and Pressure Ratings:
• 200°F at 80 psi
• 180°F at 100 psi
• 73.4°F at 160 psi
UV Resistance:
• maximum exposure 6 months
Flexibility:
• ViegaPEX Ultra can be easily bent
by hand, or with use of Viega
approved bend supports toaradius
as small as 5 times tubing
outerdiameter.
4. VIEGAPEX ULTRA TUBING
4.6 ViegaPEX Ultra Tubing Dimensions
Length Marker 000 Feet
Company Viega
Product Name ViegaPEX™ Ultra
Nominal Tubing Size 1/2"
Standard Dimension Ratio Tube Size SDR 9 CTS (copper tube size)
Material Designation Code PEX5006
Temperature & Pressure Rating 100 PSI @ 180F/ 160 PSI @ 73F
NSF Listing (Potable) cNSF®us-pw
NSF Chlorine Listing CL5
NSF Uniform Plumbing Code Listing NSF U.P. Code
ASTM Tubing Standards Certificaition
F876/F877
Candian Standard Assoc CSA B137.5
Fittings System Compatibility PureFlow - ASTM F877/F1807/F2159
UL Listing Rating* cULus 3SAV UL1821 130 PSI @ 120 F
Plenum Rating** FS/SD 25/50 ASTM E84
ICC Listing ES-PMG™ - 1038
AWWA Listing C904
HUD Listing MR 1276
Manufacturer's Date Code 1/1/2010
Material Code B2X14.2
Country of Manufacture MADE IN THE USA
* 3/4" through 2" ViegaPEX Ultra only
** 3/4" and smaller tube sizes only
Nominal Size Inner Diameter Outer Diameter Wall Thickness
3/8" .350 .500 .075
1/2" .475 .625 .075
3/4" .671 .875 .102
1" .862 1.125 .131
1-1/4" 1.054 1.375 .160
1-1/2" 1.244 1.625 .190
2" 1.629 2.125 .248
Nominal Size Available Coil Lengths Available Straight Lengths
3/8" 100, 500, 1000 feet ---------
1/2" 100, 300, 500, 1000 feet 20-foot lengths in bundles of 50
3/4" 100, 500 feet 20-foot lengths in bundles of 25
1" 100, 500 feet 20-foot lengths in bundles of 5
1-1/4" 100, 300 feet 20-foot lengths in bundles of 5
1-1/2" 100 feet 20-foot lengths in bundles of 5
2" 100 feet 20-foot lengths in bundles of 5
4.7 ViegaPEX Ultra Sizes
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5.1 General
FostaPEX tubing is the perfect companion
for the PureFlow plumbing system. This
tubing can be easily bent by hand like
the ViegaPEXtubing, but holds its shape
after bending (combining the benetsof
both rigid and exible tubing). The result
is fewer ttings and bend supports, and
less labor. FostaPEX can be purchased in
straight lengthsor coils. A unique feature
of FostaPEX is that the inner layer is
fully dimensioned ViegaPEX tubing. The
aluminum and outer PE layers surround
the inner PEX tubing. This construction
allows the inner layer alone to meet all
temperature and pressure requirements
of the system. Using theprep tool to
remove the outer layers allows the use of
the standard PureFlow PEX Press tting
system, which reduces tooling costs for
the contractor and simplies connections.
5.2 Advantages of FostaPEX
FostaPEX retains many of the features of
ViegaPEX tubing while increasing strength
and ease of installation. FostaPEX shares
the same PEX Press tting system as the
ViegaPEX tubing, reducing inventory and
tooling costs. In addition, the aluminum
layer within FostaPEX tubing minimizes
expansion during temperature changes.
The expansion rate of FostaPEX is similar
to that of copper tubing, reducing the
necessity for expansion loops andoffsets.
FostaPEX is ideal for exposed tubingruns,
where it can be straightened to present
a clean and traditional appearance. A
bending tool is also available to assist in
making smooth, tight bendsin FostaPEX.
FostaPEX tubing is manufactured to
ASTM F876/F877 standards and listed
to ANSI/NSF Standards 14 and 61. It
is chlorine resistance rated for both
traditional and continuous recirculation
PEX 5006 (CL5) applications. FostaPEX
tubing is rated at 100 psi at 180°F and
160 psi at 73°F.
5.3 Colors
FostaPEX, available in red and silver, is
constructed of a black PEX core, with
aluminum and PE outer layers. It also
blocks transmission of visible light,
preventing most types of algae growth
from occurring. In addition, the smooth
walls of FostaPEX tubing are resistant to
corrosion and scaling
.
5.4 FostaPEX Properties
and Performance
Linear Expansion Coefcient:
• 0.16 inch per 100 feet per 10°F
Temperature and Pressure Ratings:
• 200°F at 80 psi
• 180°F at 100 psi
• 73.4°F at 160 psi
UV Resistance:
• Extended (fully dimensioned
PEX core is protected by outer
AL/PE layers)
Not for use with PEX Crimp
fittings.
5. FOSTAPEX TUBING
5.6 FostaPEX Tubing Dimensions
Length Marker 000 Feet
Company Viega
Product Name FostaPEX®
Nominal Tubing Size 1/2"
Standard Dimension Ratio Tube Size SDR 9 CTS (copper tube size)
Material Designation Code PEX5006
Temperature & Pressure Rating 100 PSI @ 180F/ 160 PSI @ 73F
NSF Listing (Potable / Heating) cNSF®us-pw-rfh
NSF Chlorine Listing CL5
ASTM Tubing Standards Certificaition F876/F877
Candian Standard Assoc CSA B137.5
Fittings System Compatibility PureFlow - ASTM F877
IAPMO Listing UPC®
ICC Listing ES-PMG™1015,1038
AWWA Listing C904
HUD Listing MR 1276
Manufacturer's Date Code 1/1/2010
Material Code B2X18.1
Country of Manufacture Made in the USA
Nominal Size Inner Diameter Outer Diameter* Wall Thickness*
1/2" .475 .625 .075
3/4" .671 .875 .102
1" .863 1.125 .103
Nominal Size Available Coil Lengths Available Straight Lengths
1/2" 150, 400 feet 20-foot lengths in bundles of 25
3/4" 150 feet 20-foot lengths in bundles of 25
1" 150 feet 20-foot lengths in bundles of 10
5.7 FostaPEX Sizes
Flexibility:
• FostaPEX tubing can be bent to a radius
of 3.5 x tubing O.D. with the use of a
Viega tubing bender.
5.5 Tubing Markings
FostaPEX tubing is marked
every 5 feet with the following
representative information
:
*Dimensions do not reect outer aluminum and PE layers
Viega IM-PF 0511
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6.1 Bronze PEX Press with
Attached Sleeve
PureFlow Bronze PEX Press ttings
are cast and machined from a solid
bronze alloy available in both zero lead
and Viega's standard bronze material
that incorporates an attached stainless
steel press sleeve with three view
holes and a tool locator ring. This gives
the ttings high corrosion and stress
cracking resistance while simplifying
the connection for installation. These
bronze alloys have been specially
developed to resist dezincication,
a process that can weaken ordinary
brass ttings over time. The following
design criteria make PureFlow PEX
Press ttings perfect for use in potable
water applications.
• attached sleeve
• high corrosion resistance
• excellent strength properties
• resistant to stress corrosion
• superior wear properties
• compatible with all materials
• color coded tool locator ring matches
PEX Press hand tool color
All PureFlow tubing, ttings and
manifolds are NSF certied for use in
potable water systems.
NOTE: Some fittings/adaptors
are still sold requiring a separate
press sleeve.
6.1.1 Bronze PEX Press
Fittings, Manifolds
and Sleeves
PureFlow Bronze PEX Press ttings are
produced for all connections necessary
in a potable water system. PEX to
PEX ttings are available as straight
couplings, elbows and tees (both
single size and reducing). Adapters
mate PureFlow tubing to NPT threads,
copper tubing and copper ttings.
A full manifold offering is available. PEX
Press copper manifolds are available
from 2 to 12 outlets and may be
installed in concealed locations. The
MANABLOC and Minibloc manifold
systems are also available with zero
lead bronze PEX Press connections.
The stainless steel press sleeves
used in the PureFlow PEX Press
system ensure the integrity of each
connection. The strength of this
material guarantees a leak-free
connection every time, while the view
holes allow both the installer and
inspector to easily verify full insertion
of the tubing. The tool locator ring
ensures a consistent press every time.
The stainless steel will not corrode,
maintaining a clean appearance for the
lifetime of the system.
6.1.2 Bronze Press Fitting
Markings
Each PureFlow Bronze PEX Press
tting is marked where space permits
with the following information:
6. PUREFLOW PEX PRESS FITTINGS
Manufacturer VIEGA
ASTM standard ASTM F877
Temperature
Rating
180°F
Certications
CNSF®US pw-G,
UPC® cULus®
CSA B137.5
Note: All ttings may not be listed
with each organization shown.
Use only Viega Stainless
Steel Press Sleeves and
Press tools with PureFlow
PEX Press fittings
Viega IM-PF 0511
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6.2.3 The PureFlow PEX
Press Fitting
The PureFlow PEX Press tool
compresses the stainless steel
sleeve around the tubing and tting
in two places, permanently securing
them together — no O-rings. This
connection exceeds the requirements
of the ASTM F877 standard. The
compression of the tool also allows
press connections to be made in
temperatures as low as –4°F (23°F for
power tools).
Three view holes in the sleeve
allow installers to check for proper
tubing insertion.
6.2 PEX Press Connection
with Attached Sleeve
The PureFlow PEX Press connection
with attached sleeve provides a
simple and safe connection between
the ViegaPEX or FostaPEX tubing
and PureFlow system components.
Theratchet system in the press
tool, simple connection process,
threeview holes in the press sleeve
and color-coded locator rings all
ensure a consistent, worry-free press
connection. The difference between a
nished and unnished press tting is
also easily visible, making inspection
simple.
6.2.1 The PureFlow PEX
Press Hand Tool
The PureFlow PEX Press connection
must always be carried out with the
aid of a PureFlow PEX Press tool.
The hand tool incorporates a forced
compression mechanism to ensure
a complete and secure connection
each time. A ratchet inside the
tool prevents the tool from being
opened until the proper force has
been applied to the press sleeve.
(A safety release screw allows the
tool to be opened at any time, but
any connection made without full
tool compression must be redone.)
Thehigh mechanical advantage
provided by the PureFlow PEX Press
tool permits one-handed operation,
making the PureFlow PEX Press
system perfect for tight spaces and
awkward locations.
The PureFlow PEX Press hand tool
is available for 3/8", 1/2", 3/4" and
1" PureFlow PEX Press connections.
Each tool has a color-coded handle
that matches the PEX Press tting
locator ring for easy identication on
the job site and theyare available
individually or in convenient sets. See
the Viega product catalog fordetails.
6.2.2 The PureFlow PEX
Press Power Tool
The PureFlow PEX Press connection
may also be carried out with one of
the PureFlow power tools. These
tools are designed to make the same
consistent press as the PureFlow
PEX Press hand tools. In addition,
these tools have an integrated
diagnostic system that monitors
tool performance and battery life.
The tools have interchangeable jaw
sets for 3/8", 1/2", 3/4", 1", 1-1/4",
1-1/2" and 2". PureFlow PEX Press
connections and are also compatible
with the ProPress copper press
system jaw sets. See the Viega
product catalog for details.
Cross-section of a completed
PureFlow PEX Press fitting
Jaws
PureFlow Press Power Tool
PureFlow
Press Hand Tools
Viega IM-PF 0511
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6.2.4 Making a PureFlow PEX Press Hand Tool Connection (Attached Sleeves)
3. Insert PEX Press tting with attached
sleeve into tubing and engage fully.
4. Ensure full tubing insertion at view
holes in attached press sleeve. Full
insertion means tubing must be
completely visible in at least two view
holes and partially visible in the one.
5. Position press tool perpendicular over
Press Sleeve resting it against the tool
locator ring.
Note: The tool locator ring must be
in the factory installed position while
making a press to ensure a consistent
leakproof connection. It may be
necessary to rotate the tool locator
ring to avoid interference between the
ring and tool.
1. Square off tubing to proper length.
Uneven, jagged or irregular cuts will
produce unsatisfactory connections.
2. If using FostaPEX tubing, insert into
prep tool, push and turn until no
resistance is felt. If using ViegaPEX,
continue to step 3.
PureFlow
1/2”
PureFlow
1/2”
PureFlow
1/2”
7. Extend handle and continue
ratcheting until automatic tool release
occurs at proper compression force.
6. Close handles, using trigger to reduce
grip span if desired.
PureFlow
1/2”
Turn screw for
emergency release
8. Warning: The connection is not
leakproof when the tool has been
opened by emergency release.
The tool locator ring must be present
to ensure a proper PEX Press
connection.
Viega IM-PF 0511
520709
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6.2.5 Making a PureFlow PEX Press Power Tool Connection (Attached Sleeves)
6. Open jaw and position perpendicular
over press sleeve resting it against
the tool locator ring.
Note: The tool locator ring must be
in the factory installed position while
making a press to ensure a
consistent leakproof connection. It
may be necessary to rotate the tool
locator ring to avoid interference
between the ring and tool.
7. Start pressing process; hold the
trigger until the jaw has automatically
released.
2. If using FostaPEX tubing, insert into
prep tool, push and turn until no
resistance is felt. If using ViegaPEX,
continue to step 3.
1. Square off tubing to proper length.
Uneven, jagged or irregular cuts will
produce unsatisfactory connections.
5. Insert the appropriate PureFlow
Press Jaw into the press tool and
push in the holding pin until it locks.
4. Ensure full tubing insertion at view
holes in attached press sleeve. Full
insertion means tubing must be
completely visible in at least two view
holes and partially visible in the one.
3. Insert PEX Press tting with attached
sleeve into tubing and engage fully.
8. When press connection is complete,
open and remove jaw.
Warning: The tool locator ring must
be present to ensure a proper PEX
Press connection.
Viega IM-PF 0511
520709
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7.1 Brass PEX Crimp
PureFlow Brass PEX Crimp ttings
are machined from a zero lead ECO
Brass
®
. The following design criteria
make PureFlow PEX Crimp ttings
perfect for use in potable water
applications.
• Cost Effective
• Excellent Strength Properties
• Excellent corrosion resistance
• Fast Installation
All PureFlow tubing, ttings and
manifolds are NSF certied for use in
potable water systems.
7.1.1 Brass PEX Crimp
Fittings, Manifolds
and Crimp Rings
PureFlow Brass PEX Crimp ttings
are produced for all connections
necessary in a potable water system.
PEX to PEX ttings are available
as straight couplings, elbows and
tees (both single size and reducing).
Adapters mate PureFlow tubing to
NPT threads, copper tubing and
copper ttings.
PEX Crimp copper manifolds are
available from 4 to 10 outlets and
may be installed in concealed
locations. The MANABLOC and
Minibloc manifold systems are
also available with zero lead brass
PEX Crimp connections.
PEX Crimp Fittings are widely
accepted with over 50% of the
industry offering this system.
7.1.2 Brass PEX Crimp Fitting
Markings
Each PureFlow Brass PEX Crimp
tting is marked where space permits
with the following information:
7. PUREFLOW PEX CRIMP FITTINGS
Manufacturer VIEGA
ASTM standard ASTM, F1807
Certications
UPC
®
, or U.P. Code,
NSF-pw,
CSA B137.5,
cNSF®us pw-G
Note: All ttings may not be listed with
every organization shown.
Use only F1807 copper crimp
rings and full circle crimp
tools with PureFlow PEX
Crimp fittings.
NOT for use with
FostaPEX tubing
Viega IM-PF 0511
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7.2 PolyAlloy™ PEX Crimp
PureFlow PolyAlloy PEX Crimp
ttings are molded from Acudel
®
.
The following design criteria make
PureFlow PolyAlloy PEX Crimp
ttings perfect for use in potable
water applications.
• Cost Effective
• Superior Wear Properties
• Fast Installation
• High Corrosion Resistance
All PureFlow tubing, ttings and
manifolds are NSF certied for use
in potable water systems.
7.2.1 PolyAlloy PEX Crimp
Fittings and Crimp Rings
PureFlow PolyAlloy PEX Crimp ttings
are produced for many connections
necessary in a potable water system.
PEX to PEX ttings are available
as straight couplings, elbows and
tees (both single size and reducing).
Adapters mate PureFlow tubing to
xture connections. The MANABLOC
homerun manifold system is available
with PolyAlloy PEX Crimp connections.
PolyAlloy PEX Crimp manifolds are
available from 2 to 8 outlets and may
be installed in concealed locations.
The MANABLOC and Minibloc
manifold systems are also available
with PolyAlloy PEX Crimp connections.
The material choice and tting design
used in the PureFlow PolyAlloy PEX
Crimp system ensure the integrity of
each connection.
7.2.2 PolyAlloy PEX Crimp
Fitting Markings
Each PureFlow PolyAlloy PEX Crimp
tting is marked where space permits
with the following information:
PureFlow PolyAlloy PEX
Crimp fittings must be
protected from UV exposure
and petroleum products, which can
damage them.
In the event of incidental UV
exposure during storage, installation
and handling, combined exposure
of PolyAlloy PEX fittings shall not
exceed 15 days.
Manufacturer VIEGA
ASTM standard ASTM, F2159
Certications
NSF U.P. Code,
cNSF®us-pw,
CSA B137.5
Use only F1807 copper
crimp rings and full circle
crimp tools with PureFlow
PEX Crimp fittings.
NOT for use with
FostaPEX tubing
Viega IM-PF 0511
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7.3 PEX Crimp Connections
The PureFlow PEX Crimp
connection provides a simple
and safe connection between
ViegaPEX and PureFlow PEX
Crimp system components.
Thefull circle crimp tool and
simple connection process ensure
a consistent, worry-free crimp
connection every time.
7.3.1 The PureFlow PEX
Crimp Hand Tool
The PureFlow PEX Crimp connection
must always be carried out with the
aid of a PureFlow PEX Crimp tool.
There are multiple congurations of
PureFlow PEX Crimp tools perfect for
tight spaces and awkward locations.
The PureFlow PEX Crimp hand
tool is available for 3/8", 1/2",
3/4" and 1" PureFlow PEX Crimp
connections. Some tools are available
with color-coded handles for easy
identication on the job site. See the
Viega product catalog fordetails.
7.3.2 The PureFlow PEX
Crimp Fitting
The PureFlow PEX Crimp tool
compresses the crimp ring around
the tubing and tting in a full
circle, permanently securing them
together — no O-rings required. This
connection meets the requirements
of the ASTM F1807 or F2159
standard. The compression of the
tool also allows crimp connections to
be made in temperatures as low as
–30°F.
A GO/NO GO gauge is provided to
check the calibration of the crimp
tool. A crimp is good if the GO gauge
ts over the ring, and the NO GO
gauge does not.
At least one connection should be
checked at the beginning and end
of each day to ensure proper crimps
have been made. Most crimp tools
can be recalibrated. Please refer to
tool instructions.
A Go/No Go Gauge is provided to
check the crimp tool calibration
Cross-section of a completed
PureFlow PEX Crimp fitting
Crimp tools
Viega IM-PF 0511
520709
20
1. Square off tubing to
proper length. Uneven, jagged
or irregular cuts will produce
unsatisfactory connections.
2. Slide the correct size crimp ring
over end of the tubing.
3. Insert the tting into the pipe
to the shoulder or tube stop.
Position the ring 1/8" to 1/4"
from the end of the tubing.
4. Center the crimping tool jaws
exactly over the ring. Keep
the tool at 90° and close the
handles completely.
DO NOT CRIMP TWICE.
5. When checking crimps with
a GO/NO GO gauge, push
the gauge STRAIGHT DOWN
over the crimped ring. NEVER
slide the gauge in from the side.
Do not attempt to gauge the
crimp at the jaw overlap area.
The overlap area is indicated
by a slight removal of the
blackening treatment.
6. A crimp connection is considered
good if the GO gauge ts the ring
and the NO GO does not. A crimp
connection is considered bad if
the GO gauge does not t the
ring or the NO GO gauge does t.
Bad crimps must be cut out of the
tubing and replaced.
7.3.3 Making a PureFlow PEX Crimp Connection
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Viega 93031 Installation guide

Viega
Brand
Viega
Model
93031
Category
Water heaters & boilers
Type
Installation guide
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